Title: Air decelerator for truck cab

Abstract: A drag reducing means for a truck includes a porous structure typically mounted on the cab roof to pass air into the gap between the cab and trailer body in rearward flowing streams that undergo deceleration. Eddies are formed in the gap and act as a barrier to airfow into the gap at its sides and top.

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Inventors: Lissaman, Peter B. S. (Pasadena, CA, US)
Lambie, Jack H. (Anaheim, CA, US)

Application Number: 556210
Filing Date: 1975-03-07
Publication_date: 1976-01-27
Assignee: Aerovironment Inc. (Pasadena, CA)
Primary Class(es): 296/180.2 105/1.2, 296/91, 296/180.3
Other Classes:
US Patent Ref:

2177887	Oct, 1939	Huet	296/1.
2243906	Jun, 1941	Huet	296/1.
3241876	Mar, 1922	Saunders	296/1.
3529862	Sep, 1970	Jousserandot	296/91.
3797879	Mar, 1974	Edwards	296/91.
3817572	Jun, 1974	Francis	296/1.
3822910	Jul, 1974	Wiley Jr.	296/1.

Other Refs: 616,163

Dec, 1945	UK

Primary Examiner: Spar, Robert J.
Assistant Examiner: Underwood, Donald W.
Attorney: Haefliger; William W.